10/16/2008 @ 6:00PM

In Pictures: Most Generous Corporations (Percent Of Income)

These companies may not write the biggest checks–but they’ve given away the biggest proportion of their own income. We dubbed the following 10 companies among the most charitable in the U.S. based on their 2007 cash donations as a measure of 2006 operating income.

*Based on a list of 78 of America’s largest public companies by sales provided by The Chronicle of Philanthropy.